linux-kernel - [PATCH 6/6] swiotlb: EXPORT_SYMBOL_GPL functions + variables that are defined in the header file.

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Date:	Wed,  7 Apr 2010 16:29:30 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
	albert_herranz@...oo.es
Cc:	linux@...elenboom.it, chrisw@...s-sol.org,
	Ian.Campbell@...citrix.com, jeremy@...p.org, dwmw2@...radead.org,
	alex.williamson@...com,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 6/6] swiotlb: EXPORT_SYMBOL_GPL functions + variables that are defined in the header file.

Make the functions and variables that are now declared in the swiotlb.h
header file visible by the linker.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
---
 lib/swiotlb.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 5443ad5..48f1e94 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -58,12 +58,14 @@ int swiotlb_force;
  */
 char *swiotlb_tbl_start;
 static char *io_tlb_end;
+EXPORT_SYMBOL_GPL(swiotlb_tbl_start);
 
 /*
  * The number of IO TLB blocks (in groups of 64) betweeen swiotlb_tbl_start and
  * io_tlb_end.  This is command line adjustable via setup_io_tlb_npages.
  */
 unsigned long swiotlb_tbl_nslabs;
+EXPORT_SYMBOL_GPL(swiotlb_tbl_nslabs);
 
 /*
  * When the IOMMU overflows we return a fallback buffer. This sets the size.
@@ -313,6 +315,7 @@ int is_swiotlb_buffer(phys_addr_t paddr)
 	return paddr >= virt_to_phys(swiotlb_tbl_start) &&
 		paddr < virt_to_phys(io_tlb_end);
 }
+EXPORT_SYMBOL_GPL(is_swiotlb_buffer);
 
 /*
  * Bounce: copy the swiotlb buffer back to the original dma location
@@ -354,6 +357,7 @@ void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size,
 			memcpy(phys_to_virt(phys), dma_addr, size);
 	}
 }
+EXPORT_SYMBOL_GPL(swiotlb_bounce);
 
 /*
  * Allocates bounce buffer and returns its kernel virtual address.
@@ -461,6 +465,7 @@ found:
 
 	return dma_addr;
 }
+EXPORT_SYMBOL_GPL(swiotlb_tbl_map_single);
 
 /*
  * dma_addr is the kernel virtual address of the bounce buffer to unmap.
@@ -506,6 +511,7 @@ swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr, size_t size,
 	}
 	spin_unlock_irqrestore(&io_tlb_lock, flags);
 }
+EXPORT_SYMBOL_GPL(swiotlb_tbl_unmap_single);
 
 void
 swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, size_t size,
@@ -534,6 +540,7 @@ swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr, size_t size,
 		BUG();
 	}
 }
+EXPORT_SYMBOL_GPL(swiotlb_tbl_sync_single);
 
 void *
 swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -626,6 +633,7 @@ swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir,
 	if (dir == DMA_TO_DEVICE)
 		panic("DMA: Random memory could be DMA read\n");
 }
+EXPORT_SYMBOL_GPL(swiotlb_full);
 
 /*
  * Map a single buffer of the indicated size for DMA in streaming mode.  The
-- 
1.6.2.5

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